Wednesday, December 31, 2008

Got a start on this over the weekend, and will probably spend some time on it New Year's day. Right now, the basic functionality and physics work, but it only supports simple point drawing - no shapes or texture mapping. I'm also working on recycling the particles rather than constantly allocating and freeing the memory.

I have no idea how this is going to perform on an actual device - I've been working on the simulator so far, but I will be curious to see what these little machines can do when I start adding textures, transparencies and the rest.

The variables xspeed and yspeed allow us to control the direction of the tail. xspeed will be added to the current speed a particle is travelling on the x axis. The reason I say 'MORE' in a specific direction is because other factors affect the direction our particle travels. xspeed and yspeed help to move the particle in the direction we want.

What youre saying is completely true. I know that everybody must say the same thing, but I just think that you put it in a way that everyone can understand. I also love the images you put in here. They fit so well with what youre trying to say. Im sure youll reach so many people with what youve got to say.

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About Me

I'm a programmer, author, and one of the founders of MartianCraft, a software development shop doing both contract and in-house software development.
My iPhone books (both written with Dave Mark) are published by Apress. My first book, Beginning iPhone Development (currently in its 6th edition) is the all-time best-selling book on learning to program the iPhone and iPad.
I also sculpt and take pictures when I need to engage the other side of my brain a little more.